We're launching the incredibly exciting @irvinecubesat satellite on our It's Business Time mission. The CubeSat, IRVINE01, was built by high school students in Irvine, California. It's such a privilege to open access to orbit for projects like this.

Celebrating women in aerospace

Fifty-five years ago Valentina Tereshkova became the first woman to travel to space. We celebrate Valentina and all of the women in aerospace who blazed the trail.

Transcript from Rocket Lab 'Still Testing' attempt 20.01.2018
"Flight VMS, mission coord..."
"Go ahead, VMS"
"Do you want any hold points?"
"Say again"
"Do you want any hold points?"
"I... didn't get'cha. One more time."
"Do you want any hold points? As in, do you want to hold again at T-... 18, or 20?"
"I never want to hold again."

Still Testing Launch - 01/21/2018

Rocket Lab has successfully reached orbit with the test flight of its second Electron orbital launch vehicle, Still Testing. Electron lifted-off at 14:43 NZDT from Rocket Lab Launch Complex 1 on the Māhia Peninsula in New Zealand.
Following successful first and second stage burns, Electron reached orbit and deployed customer payloads at 8 minutes and 31 seconds after lift-off.
Still Testing was carrying a Dove Pioneer Earth-imaging satellite for launch customer Planet, as well as two Lemur-2 satellites for weather and ship tracking company Spire.

Rocket Lab - Still Testing - Launch Attempt 12/12/2017

Rocket Lab 'Still Testing' Electron launch attempt carried out on Tuesday December 12th 2017 at 16:50 NZDT (03:50 UTC).The vehicle performed a safe auto-sequence abort at T-00:00:02 from lift-off. For real time updates follow Rocket Lab on Twitter at twitter.com/rocketlab

Rocket Lab Flight Two Stage 1 Stack Test

Rocket Lab - Electron launch

Rocket Lab's goal is to make space accessible by providing unprecedented launches to low Earth orbit.
Check out an animation of our Electron rocket in action!

It's a Test - Launch Day Video

It's a Test - Rocket Lab's Electron
16:20pm Thursday 25 May (NZST)

It's a Test - Lift Off!

Electron Arrives at Rocket Lab Launch Complex 1

Rocket Lab Qualifies First Stage of Electron Launch Vehicle

Rocket Lab has completed qualification and acceptance testing of Electron's first stage booster. Completion of the tests marks the final major technical milestone ahead of first test launch of the Electron vehicle.

Rocket Lab Epic

Rocket Lab Launch Site Nears Completion Ahead of Test Launches

Rocket Lab has installed the launch platform at the private orbital launch under development on New Zealand’s Mahia Peninsula.
The installation of the almost 50 ton platform is the final major step in preparing the site for the arrival of the first Electron launch vehicle, scheduled to be tested in the coming months.
The platform will be used to erect the launch vehicle from a horizontal to a vertical position and provides all of the services to fuel and launch. The strongback, which sits atop the platform, supports the launch vehicle and is retracted just prior to launch.
The launch site is the first private orbital launch site in the world, and is set to enable the highest frequency of space launches in history.

Rocket Lab Qualifies Second Stage of Electron Launch Vehicle

April 2016
Rocket Lab has successfully completed the qualification of the entire second stage of the Electron launch vehicle. The second stage is responsible for delivering payloads of 150kg to a nominal 500km sun-synchronous orbit. The second stage uses one 5,000 lbf Rutherford Engine with an extension nozzle optimized for vacuum performance.

A Career at Rocket Lab

Rocket Lab is redefining the way we access space and we need the best engineers to get there. By joining our team, you will build rockets that will change the paradigm of space access.
You will be part of Electron, a project set to enable the emerging small-satellite market by offering dedicated, high-frequency launch. Join us for a life changing experience and adventure.

Rocket Lab’s Rutherford Engine Qualified for Flight

April, 2016
The 5,000 lbf Rutherford engine was created by Rocket Lab specifically for the company’s Electron launch vehicle. Rutherford has been tested extensively for over two years, and was qualified for flight after completing more than two hundred engine hot fires.
The qualification of the engine is a major milestone for 3D printing; Rutherford is the first oxygen/hydrocarbon engine to use additive manufacturing for all primary components of the combustor and propellant supply system. Rutherford also has a unique electric propulsion cycle, making use of high-performance brushless DC electric motors and lithium polymer batteries to drive its turbopumps.

VLM Test Flight 2

VLM is a propellant and propulsion system entirely developed by Rocket Lab New Zealand. It has been sponsored by DARPA and ONRG over 2 programs to rapidly develop the technology for use in a wide range of rocket propulsion applications. VLM is a single part high density monopropellant. It currently has performance and density equal or better than current solid fuel propulsion systems but has all the controllability of a liquid system with an ability to throttle arbitrarily, shut down and restart.
One of the key aspects of the propellant is that it is a thixotrope. It is a pseudo solid while static in the storage vessel however once some force or shear is applied to the propellant fluid it will thin rapidly. This shear thinning enables the propellant to be injected within the combustion chamber creating optimum combustion and full liquid controllability.

Rocket Lab VLM Test Flight

VLM is a propellant and propulsion system entirely developed by Rocket Lab New Zealand. It has been sponsored by DARPA and ONRG over 2 programs to rapidly develop the technology for use in a wide range of rocket propulsion applications. VLM is a single part high density monopropellant. It currently has performance and density equal or better than current solid fuel propulsion systems but has all the controllability of a liquid system with an ability to throttle arbitrarily, shut down and restart.
One of the key aspects of the propellant is that it is a thixotrope. It is a pseudo solid while static in the storage vessel however once some force or shear is applied to the propellant fluid it will thin rapidly. This shear thinning enables the propellant to be injected within the combustion chamber creating optimum combustion and full liquid controllability.

Rocket Low altitude stability test

High Speed camera launch of a AIM9 Missile analogue

Rocket Lab VLM Rocket Engine

Rocket Lab recently achieved a major milestone for its high density monopropellant (VLM) research by the successful full scale test fire of a motor which is scheduled to fly in November 2012. The research, supported by DARPA and ONR, aims to demonstrate the performance, controllability and safely of the new propulsion system over current state of the art.
Viscous Liquid Monopropellant (VLM) is high density Monopropellant aimed at providing a high performance alternative to liquid & solid propulsion.
Has the density of a solid and the controllability of a liquid, can be started, stopped and throttled arbitrarily.
Storable ~300 ISP @40E vac
VLM delivers revolutionary propulsion system performance and cost.
Non-Toxic green propellant that is soluble in water for Hydrazine replacement

Engine1_Camera1_Cropped.wmv

Rocket Lab : Ātea-1 Suborbital Rocket Launch (short version)

Atea-1 rocket launch on November 30, 2009 by Rocket Lab from Great Mercury Island, New Zealand. Short version.

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Is Dark Energy Getting Stronger?

Learn More about The Great Courses Plus: http://ow.ly/wvWC30o0QYV
Check out the new Space Time Merch Store!
https://pbsspacetime.com/
Support Space Time on Patreon
https://www.patreon.com/pbsspacetime
The power of Dark Energy may be increasing as the universe ages. Subtle clues are emerging that the accepted model for the nature of dark energy and dark matter may not be all that. We saw the first such clue recently in our recent episode on the Crisis in Cosmology. Today we’re doing a Space Time Journal Club to reveal another clue. We’re looking at a new paper in Nature Astronomy, “Cosmological constraints from the Hubble diagram of quasars at high redshifts” by Risaliti and Lusso. It hints that the cosmological constant may not be so constant after all. In fact it may be increasing. If this is true, then our prediction for the future of our universe looks VERY different, and may involve the entire universe tearing itself to shreds at the subatomic level in the Big Rip.
On this edition of Space Time Journal Club we look at:
Risaliti & Lusso (2019) "Cosmological Constraints from the Hubble Diagram of Quasars at High Redshifts"
https://www.nature.com/articles/s41550-018-0657-z
#darkenergy #darkmatter #spacetime
More about The Great Courses Plus:
The Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US, UK, and Australian markets. The Great Courses Plus is currently working to both optimize the product globally and accept credit card payments globally.
Learn More About Dark Energy Here:
https://www.youtube.com/playlist?list=PLsPUh22kYmNA6WUmOsEEi32zi_RdSUF4i
Hosted by Matt O'Dowd
Written by Matt O'Dowd
Graphics by Aaron Halevy
Directing by Andrew Kornhaber
Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters:
Big Bang:
Anton Lifshits
coolascats
David Nicklas
Fabrice Eap
Juan Benet
Justin Lloyd
Tim Davis
Quasar:
James Flowers
Mark Rosenthal
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Vinnie Falco
Hypernova:
chuck zegar
Danton Spivey
Donal Botkin
Edmund Fokschaner
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John Hofmann
Jordan Young
Joseph Salomone
kkm
Mark Heising
Matthew O'Connor
Thanks to our Patreon Gamma Ray Burst Supporters:
Alexey Eromenko
Antonio Ruiz
Bradley Jenkins
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Jonah
Joseph Emison
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Mark Vasile
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Ratfeast
Richard Broman
Scott Gossett
Sigurd Ruud Frivik
Tim Crookham
Tim Stephani
Tommy Mogensen
سلطان الخليفي

NASA ScienceCasts: A Super Start to 2019

2019 is an excellent year to look to the sky and enjoy the spectacular view of Earth’s nearest neighbor, the Moon.
NASA Science: http://science.nasa.gov/

Do black holes contain dark matter?

Black holes grow by accreting matter under gravity; so surely they should be able to accrete dark matter? So then is there loads of dark matter trapped inside black holes?
Turns out it's a bit more complicated than that because of what we know of how dark matter behaves - which isn't a lot! - but it's enough.
This was a really fun speculative question to think about, especially because it ties in with my PhD thesis too. Let me know if you want me to do a video describing my thesis down in the comments.
Both my lapel microphones ran out of battery this week. Thankfully one of them didn't need a battery to use with a smartphone, so the sound was recorded that way. It's not brilliant I know, but it'll do. My research schedule this week stopped me from delaying filming until I could get a battery. The sound suffered so science wouldn't.
iIf you have questions you want me to answer either tweet them to me (https://twitter.com/drbecky_) or leave them in the comments below. I'm more likely to see stuff on Twitter!
Please subscribe if you haven't already and click the little bell icon to be notified when I post a new video!
My sister made the frame in the background as a present when I passed my PhD. She does commissions: https://megansmethurstdesign.wordpress.com/work/
I also present videos on Sixty Symbols: https://www.youtube.com/user/sixtysymbols
and Deep Sky Videos: https://www.youtube.com/user/DeepSkyVideos
------
Dr. Becky Smethurst is a Junior Research Fellow at Christ Church at the University of Oxford.
Twitter: https://twitter.com/drbecky_
http://drbecky.uk.com

Space Weather News | A Filament Sandwiched by Sunspots 03.20.2019

UPDATE: Part of the filament I talk about did erupt after I posted this video! We could have a part-Earth directed solar storm coming by the end of this week! Check my twitter feed for the latest on arrival time!
Original Video Description:
This week we are coming down from a solar storm from some fast solar wind, but that doesn't mean the fun is over! We have two fast-growing sunspots on the Earth-facing Sun and they are sandwiching a filament that is growing more unstable by the day. If this filament erupts within the next day or so, we could have an Earth-directed solar storm! We are keeping a close watch on this to be sure. Also, one of the new sunspots may be showing signs of an influence of solar cycle 25. Just like the previous rogue sunspot we saw a few weeks ago, this new region has a dominant magnetic signature that runs north-south instead of east-west. Its too early to tell what the final polarity of this region will be, but if it continues this way, it will be yet another signal that solar cycle 25 is closer than we think! Learn the details of this filament sandwich, get the scoop on the two new sunspots that may cause its launch, and see what else our Sun has in store for us this week!
To get early access to my forecasts plus more visit:
http://patreon.com/SpaceWeatherWoman
For daily and often hourly updates (during active times) visit me on Twitter:
https://twitter.com/TamithaSkov
For a more in-depth look at the data and images highlighted in this video see these links below.
Solar Imaging and Analysis:
SDO: http://sdo.gsfc.nasa.gov/data/
Helioviewer: http://www.helioviewer.org/
Flare Analysis: http://www.lmsal.com/solarsoft/latest_events/
Computer Aided CME Tracking CACTUS: http://www.sidc.oma.be/cactus/out/latestCMEs.html
GOES Xray: http://www.swpc.noaa.gov/rt_plots/xray_1m.html
SOHO: http://sohodata.nascom.nasa.gov/
Stereo: http://stereo.gsfc.nasa.gov/
GONG magnetic field synoptic movie: https://gong.nso.edu/data/magmap/standard_movie.html
GONG magnetic field synoptic charts: http://gong.nso.edu/data/magmap/
LMSAL Heliophysics Events HEK http://www.lmsal.com/isolsearch
Solar Wind:
DISCOVR solar wind: http://www.swpc.noaa.gov/products/real-time-solar-wind
ACE Solar Wind: http://www.swpc.noaa.gov/products/ace-real-time-solar-wind
NASA ENLIL SPIRAL: https://iswa.gsfc.nasa.gov/IswaSystemWebApp/iSWACygnetStreamer?timestamp=2038-01-23+00%3A44%3A00&window=-1&cygnetId=261
NOAA ENLIL SPIRAL: http://www.swpc.noaa.gov/products/wsa-enlil-solar-wind-prediction
Magnetosphere, Ionosphere, Atmosphere:
GOES Magnetometer: http://www.swpc.noaa.gov/products/goes-magnetometer
Ionosphere D-Region Absorption (DRAP) model: http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap/
Auroral Oval Ovation Products: http://www.swpc.noaa.gov/products/aurora-30-minute-forecast
Global 3-hr Kp index: http://www.swpc.noaa.gov/products/planetary-k-index
Wing Kp index prediction: http://www.swpc.noaa.gov/products/wing-kp
USGS Ground Magnetometers: http://geomag.usgs.gov/realtime/
USGS Disturbance Storm-Time (Dst): http://geomag.usgs.gov/realtime/dst/
NAIRAS Radiation Storm Model: http://sol.spacenvironment.net/raps_ops/current_files/globeView.html
Multi-Purpose Space Environment Sites:
NOAA/SWPC: http://www.swpc.noaa.gov
SOLARHAM: http://www.solarham.net/index.htm
Spaceweather: http://spaceweather.com
iSWA: http://iswa.gsfc.nasa.gov/iswa/iSWA.html
Definition of Geomagnetic Storm, Radiation Storm, and Radio Blackout Levels:
http://www.swpc.noaa.gov/NOAAscales/
None of this would be possible without the hard work and dedication of those who have provided all of this data for public use.
Images c/o NASA/ESA/CSA (most notably the superb SDO, SOHO, ACE, STEREO, CCMC, JPL & DSN teams, amazing professionals, hobbyists, institutions, organizations, agencies and amateurs such as those at the USAF/HAARP, NICT, NOAA, USGS, Environment Canada, Natural Resources Canada, Intellicast, Catatania, rice.edu, wisc.edu, sonoma.edu ucalgary.ca, rssi.ru, ohio-state.edu, solen.info, and more. Thanks for making Space Weather part of our every day dialogue.

HiClip: In the Gullies and Bedrock of Ius Chasma (Mars)

This image was acquired in Ius Chasma, a major section of the giant Valles Marineris trough.
(Audio: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km. For images with scale bars, refer to the link below.)
NASA/JPL/University of Arizona
https://uahirise.org/ESP_058580_1720

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